| Club: | Dundalk |
| Season: | 2018 |
| Manager: | Stephen Kenny |
| League: | Premier Division |
| League Result: | 1st (champions) |
| Cup1: | FAI Cup |
| Cup1 Result: | Winners |
| Cup2: | League Cup |
| Cup2 Result: | Semi-final |
| Cup3: | President's Cup |
| Cup3 Result: | Runners-up |
| Cup5: | Leinster Senior Cup |
| Cup5 Result: | Semi-final |
| Cup7: | Europa League |
| Cup7 Result: | 2Q |
| League Topscorer: | Patrick Hoban (29) |
| Season Topscorer: | Patrick Hoban (32) |
| Highest Attendance: | 4,117 (vs. Cork City, 29 June 2018)[1] |
| Pattern La1: | _dundalk18h |
| Pattern B1: | _dundalk18h |
| Pattern Ra1: | _dundalk18h |
| Pattern Sh1: | _dundalk18h |
| Pattern So1: | _dundalk18h |
| Pattern La2: | _dundalk18a |
| Pattern B2: | _dundalk18a |
| Pattern Ra2: | _dundalk18a |
| Pattern Sh2: | _dundalk18a |
| Pattern So2: | _black_midband_silver |
| Prevseason: | 2017 |
| Nextseason: | 2019 |
Dundalk entered the 2018 season as the League Cup holders from 2017, having won that competition and finished as runners-up in both league and FAI Cup. In January the club was taken over by United States-based investors, who had identified the club's European progress as a commercial opportunity. 2018 would turn out to be Stephen Kenny's sixth and final season as manager. He resigned one month after the end of the season to accept the Republic of Ireland U-21 manager's role, and was replaced by his assistant, Vinny Perth for 2019. The 2018 season was Dundalk's 10th consecutive season in the top tier of Irish football, their 83rd in all, and their 92nd in the League of Ireland.
The new season's curtain raiser - the President's Cup - was played on 11 February in Oriel Park between Dundalk and Cork City - the winners of both league and cup the previous year. Cork City won on a 4-2 scoreline.[2] The 36 round League programme commenced on 16 February 2018, and was completed on 26 October 2018. Dundalk regained their title with three games to spare, sealing the title in Oriel Park in a 1-1 draw with St Patrick's Athletic on 5 October 2018.[3] They went on to win the 2018 FAI Cup with a 2-1 victory over Cork City in the final on 4 November 2018 - the club's fourth League and Cup Double.[4] An opportunity to win the club's first domestic Treble was spurned when a largely reserve side lost the League Cup semi-final away to First Division Cobh Ramblers.[5]
In Europe progress was limited when, after defeating Levadia Tallinn,[6] and holding AEK Larnaca scoreless in Oriel Park, three quickfire first half goals in the away leg in Cyprus in the 2018-19 Europa League second qualifying round ended their interest in that year's competition.[7]
| Squad No. | Name | Date of Birth | Position | Debut season | League appearances | Goals |
|---|---|---|---|---|---|---|
| 1 | 25 September 1981 | GK | 2015 | 34 | 0 | |
| 2 | 11 July 1991 | DF | 2014 | 26 | 1 | |
| 3 | 4 November 1986 | DF | 2013 | 22 | 1 | |
| 4 | 15 March 1994 | DF | 2017 | 27 | 2 | |
| 5 | 27 December 1990 | MF | 2012 | 33 | 3 | |
| 6 | 15 January 1986 | MF | 2013 | 10 | 0 | |
| 7 | 28 July 1994 | MF | 2017 | 36 | 13 | |
| 8 | 22 February 1993 | MF | 2012 | 18 | 4 | |
| 9 | 28 July 1991 | FW | 2013 | 36 | 29 | |
| 10 | 30 September 1996 | MF | 2017 | 30 | 2 | |
| 11 | 19 January 1993 | MF | 2018 | 16 | 3 | |
| 11 | 26 September 1992 | MF | 2016 | 11 | 1 | |
| 12 | 23 July 1995 | FW | 2018 | 2 | 0 | |
| 13 | 21 April 1991 | MF | 2018 | 7 | 1 | |
| 14 | 17 April 1988 | DF | 2013 | 29 | 1 | |
| 15 | Stephen Folan | 14 January 1992 | DF | 2018 | 9 | 1 |
| 16 | 2 May 1995 | MF | 2017 | 28 | 4 | |
| 17 | 8 September 1997 | MF | 2015 | 4 | 0 | |
| 18 | 7 May 1992 | MF | 2016 | 32 | 9 | |
| 19 | Ronan Murray | 12 September 1991 | FW | 2018 | 23 | 3 |
| 21 | Daniel Cleary | 9 March 1996 | DF | 2018 | 26 | 3 |
| 22 | 15 September 1986 | GK | 2014 | 3 | 0 | |
| 23 | 1 July 1988 | FW | 2018 | 16 | 2 | |
| 30 | Ross Treacy | 26 September 1998 | GK | 2018 | 0 | 0 |
| 33 | 1 June 1992 | DF | 2018 | 19 | 0 | |
| 45 | 12 November 1996 | FW | 2018 | 7 | 0 | |
Source:[10]
Source:[11]
Source:[12]
Source:[13]
| Month | Player | References | |
|---|---|---|---|
| April | Michael Duffy | [14] | |
| May |  Seán Hoare | [15] | |
| June | Patrick Hoban | [16] | |
| August | Michael Duffy | [17] | |
| September | Chris Shields | [18] | |
| October/November | Patrick McEleney | [19] |